Box-blank machine.



O. C. THOMPSON.

BOX BLANK MACHINE.

`APPLICATION FILED MAY4,1912.

1 ,258, 625 Patented Mar. 5, 1918.

6 SHEETS-SHEET l.

0. C. THOMPSON.

BOX BllANK MACHINE. APPLlcATloufrlLEn mw 4. islz.

1,258,625. Patented Mar. 5,1918,

6 SHEETS-SHEET 2.

o. THoMPsoN. BOX. BLANK MACHINE. APPLICATION FILED lAY 4. 1912.

1,258,625. Patented Mar. 5, 1918.v

6 SHEETS-SHEET 3- Winceae@ Ivi/venan' .n/1,@ ceola 0.171110711406071.

MQ W YM M/Wm o. c. THOMPSON.

BOX BLANK MACHINE.

APPLICATION FILED MAY 4, IsIz.

1 ,258,625. Patented Mar. 5, 1918.

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.n/.ff 1Km/. 00veola iT/101117116011.

lfm( W 7%@ Box a THOMPSO LANK MACHI n min MAY Patented Mar. 5, 1918.

5 SHEETS-SHEET 5- mines@ e@ I I Hafen/tor 06060221 6. Tho y 07/ mpson,@224/ 4wd/f; /MLF 0. C. THOMPSON.

BOX BLANK MACHINE.

APPLICATION mso um 4,191.2.

- 1,258,625. Patented Maf. 5, 1918.

6 SHEETS-SHEET 5.

Wnesse@ Inventor:

UNITED sTATEs PATENT oEEIcE.`

-OSCEOLA C. THOMPSON, OF NEW YORK, N. Y., ASSIGNOB T0 WIBEBOUNDS PATENTSI COMPANY, A CORPORATION 0F MAINE.

Specication of Letters Patent.

RElSSUED l l Patented Mar. 5, 1918'.

Application led lay 4, 1912. Serial No. 695,104.

To all whom it may concern.'

Be it known that I, OsoEoLA C. THOMPSON, a citizen of the United States,and a resident of New York, county of New York, and State of New York,have invented an Improvenient in Box-Blank Machines, of which thefollowing description, in connection with the accompanying drawings, isa specification, like characters on the drawings representing likeparts.

This invention relates to machines for makin box blanks, such, forexample as comprise a series of sections of thin wood or other suitablematerial 'bound together by wires stapled to the sections. The box blankis formed in the machine and subsequentlyfolded and assembled with itsends to form a complete box in the usual manner.

The character of the invention may be best understood by reference tothe following description of an illustrative embodiment thereof shown inthe accompanying drawing, wherein:

Figure 1 is a front elevation of the illustrative box blank machineshown herein as embodying the invention;

Fig. 2 is a partial side elevation of the machine shown in Fig. 1; i

Fig. 3 on .an enlarged scale is a detail of a `staple stock feedcontrol; v

Fig. 4 is a vertical longitudinal section through a portion of themachine shown in Fig. 1;

Fig. 5 on an enlarged scale is a plan View of a carriage skip mechanismshown in Fig. 4;

Fig. 6 on an enlarged scale is a detail in perspective of the stapleforming and driving mechanism;

Fig. 7 is a vertical section through parts' shown in Fig. 6;

Fig. 8 is a view similar to Fig. 7 showing parts in a differentposition;

Figs. 9 and 10 are sectional details of the staple forming and drivingmechanism;

Fig. 11 is a plan of the staple forming and driving mechanism shown inFig. 6; v Fig. 12 is a side elevation of the opposi end of the machinefrom that shown in Fig. 2; and l l Figs 13, 14 and 15 are details toberefcrred to..

Fig. 13 is a detail elevation'of the feedinmeans for the wire;

ig. 14 is a section on line 14--14 of Fig. 18

Fig. 15 is an elevation in detail of a portion of the stapleforming'mechanism.

Referring to the drawing, the illustrative machine there shown comprisesframes 1 and 3 (Figs. 2 and 12) for supporting a carriage on which thebox sections are assembled to form a box blank. As shown herein, thiscarriage comprises link side chains 5 passing around idler sprocketwheels 7 (Fig. 12) at one end of the machine and around driven sprocketwheels 9 (Fig. 2) at the opposite end of the machine, said sprocketwheels being mounted on shafts journaled in bearings carried by saidframes 1 and 3. To render the chains adaptable for blank sections ofdifferent assembled lengths, the bearings of the idler sprocket wheelsare adjustable on their frame toward or from said driven sprocketwheels. To provide for sections of differentwidths the sprocket wheelsat one side of the machine may be adjusted relatively to those at theopposite side of the machine in the usual manner.

The side chains 5 are composed of links 1() formed to receive the cleatsfor the sections. Each link comprises side bars 10 and 10 secured to abase bar 10 by screws or other suitable means.

To position and prevent the 'sections and cleats from sliding along thelinks, spacer blocks 10 are provided preferably'formed to straddle thelink bar 10" and are secured in various positions on said bar by setscrews 10 according to the dimensions of the sec tions and cleats used.

The carriage may be driven in a variety of ways for different purposes.To impart step-bystep movements to the carriage each movement beingpreferably a distance corresponding to the space between staples, thedriven sprocket wheel shaft (Fig. 2) is provided with a ratchet wheel 11engaged by a spring pressed -pawl 13 carried b v a rocking arm 15 havingone end journaled loosely on said sprocket shaft and its opposite endportion connected by a rod 17 with an eccentric strap 19 Qn an eccentric21 fast on a main driving shaft 23 journaled in bearings in the frame 1and driven at the opposite side ofthe machine by a belt pulley 25(Fig. 1) in the usual manner.

To vary the length of the step feed of the carriage the pawl carryingarm 15 is provided with an elongated slot 27 receiving an adjusting pin2 9 in an eye of the eccentric rod 17 so that b v sliding said pin insaid slot various distances from the sprocket shaft the throw of thepawl and the feed step of the carriage canbe varied.

It is desirable' to vary the spacing of the staples at will and during`the running of the machine. This may be-conveniently effected bymanually operable means conveniently accessible to the operator forsliding the pin 29 in the elongated slot 27 of the pawl carrying arm 15for advancing the ratchet wheel 11 step-bystep. To this end the pin 29is connected by a link 29a to a lever 291 fulcrumed intermediate` itsends on a. pin 29c projecting from one of the side frames of themachine. To rock this lever, its upper end is provided with a block 29dprojecting from a face thereof and into an arcuate slot 29 of a segment29 pivoted to the machine frame and having a handle 29g whereby thesegment may be readily rocked. To fasten the segment in differentposltions of adjustment, the handle is provided with a spring pressedratchetV tooth 29h coperating with a ratchet 29i fast on the machineframe.

By the above described construction the handle 29g. may be gripped androcked to various positions of adjustment and in so doing it will rockthe lever 29b and the lat ter, through the link 29, willslide theadjusting pin 29 radially toward or from the fulcrum of the rocking arm15 and thereby vary the length of the step feed.. A

This is a very advantageous construction since, for example, twodifferent running positions may be used on some boxes orl crates, oneposition for the top and bottom and the other for the sides whereby agiven number of staples can be pla'ced in the top and bottom and apredetermined number of staples can be placed in the sides, the spacingof the staples in the latter being different from that of the top andbottom. Also staples can be placed at the proper places on theside ofcrate; that is, in the slats only and not in the spaces between slats.

- This control may also. be used to prevent the a p'lication of staplesat joints between the sides of the box. The handle 29g may be set to anormal running position and may be shifted to lengthen the step over ajoint and thenback to its normal running position.

It is desirable to not onl rov'ide an auto matic step-by-step feed of' te carriage, but also at times-to manually control the feed thereof.Tothis end a ratchet gravity pawl 31 (Fig. 2) is provided, carried by anarm 33 fast on a studl 35 on the frame l and adapted to be rocked by along handle fast on said stud and projecting rearwardly to a pointconvenientlyi accessible to the operative of the machine. During theautomatic step-bystep advance of the ratchet wheel the pawl 31 will wipeidly over the teeth thereof. When it is. desired to actuate said ratchetindependently of the other feeds described, the handle 37 may be graspedand rocked to impart movement to said ratchet. This will be advantageousfor a variety of purposes. Among others, this handle may be used tocontrol the carriage feed and prevent the application of staples in thejoints between sections. lThis may be done in different ways, as byprolonging a feed step at the same rate of speed or by increasing thespeed offeed to produce a greaterfeed step in a 'ven period of time.Also by the use of this handle the first blank section may be fed tobring the same at a i One important feature of the invention j relatesto automatic means for preventing stapling at a joint between sections.As shown herein, this means comprises detectors located on oppositesides of the machine, each comprising a pawl 39 (Figs. 4

and 5) pivoted on a horizontal bar-like carrier 41 adapted toreciprocate in guides 43 secured to an angle bar 45 suitably supportedby the machine frame. The pawl 39 is normally pressed in toward thechain adjacent thereto by a spring 47, such movement being limited by apin 49 on the carrier occupying an elongated eye 51 in said pawl.

To reclprocate said pawl carrier in its guides one4 end thereof isconnected by a link 53 (Fig. 4) to a rocking lever 55 ful crumed betweenits ends on a stud on the frame, said lever in turn being connected by ashort arm 57 to an eccentric strap 59 on an eccentric 61 fast on themain shaft 23 referred to. i

As stated, to properly space and position the box blank sections on thecarriage, the latter is provided at intervals with appropriate spacerblocks. These blocks have projections extending outwardly from theacrossthe ends of said spacer blocks and then spring backof them, so that onopposite travel of said pawls they will engage the spacer blocks and ifmoving more rapidly than the latter, `will pick up and feed 13| thecarriage independently of its automatic pawl and ratchet step feed.

To avoid stapling at. a joint between sections the detector actuatingmeans described may be operated to prolong a feed step or it may bearranved to increase the speed of the feed to prodhucea longer feedstepin a given period of time; or by maintaining a uniform speed offeed, but prolougingrthe period during which the feed step continued.These results can be had by various means, as by driving the detectoroperating eccentrics at different speeds or by varying the lengths ofthe driving connections from the eccentrics to the detector carriers.

The detectors are arranged relatively to the stapling mechanism so as tocause the skip in the feed to occur at the proper time With respect tothe operations of said mechanism.

While, as shown herein the spacer blocks for the box blank sections arecontrolled by the detectors, it will be understood that the control issusceptible of considerable modification and that it might be had byother devices associated with the box blank carriage.

Having described the carriage, the automatic feed therefor, the manualcontrol and the automatic mechanism for avoiding stapling at a jointbetween sections, I will now describe the means for applying the bindingwire t0 the sections and then describe lthe means for stitching orforming and driving staples to secure said wire to said sections.

The binding wire may be led from any suitable source of supply, hereinillustrated as a series of reels 63 (Fig. 2) loosely mounted on a shaftcarried by hangers 65 having hooks for removable connection with a rod67 carried by a frame 69 secured to uprights 71 of the machine frame 1.To prevent the wire from jumping over the ends of the reels and toretard the unwinding of the Wire from the reels, they may be providedWith .gravity brake shoes 72 pivotally connected to said reel supportingrod 67.A The Wire is led from the reels down toward the carriage toguide rollers 73 carried by brackets 74 on a horizontal rod 75 extendingfrom side to side of the machine slightly above the carriage chains andthence to and beneath rollers 76 carried by the stitchers. The leadingends of the wires are suitably secured to the first section andprogreive movements lof the carriage will cause them to lie across andconnect the box blank sections.

To contribute to the positioning of the sections as they are led beneaththe stitchers, shoes 75l are provided conveniently pivotally connectedto and depending from said horizontal rod 75, said shoes being slottedto permit their vertical adjustment t0 reels down toward the carriageand to staple forming and drivin mechanisms which I will now describe.ne of these mechanisms is provided for each wire, and being silmilar, adescription of one will suffice for a l.

Referring more particularly to Figs. 6 to 11 inclusive, such mechanismcom rises lower and upper heads 79 and 81 detaciiably and adjustablymounted on cross-bars 83 and 85, one of which is fixed to the sideframes of the machine While the other is carried by blocks 87 adapted toslide vertically in guide ways 89 in the uprights of the machine sideframes. To impart vertical reciproeation to said blocks 87 they areconnected by pitmen 91 to eccentric straps 93 of eccentrics 95 fast onthe main shaft Q3 referred to.

To conduct the staple stock from the reels 77 to the lower heads 79 ofthe stitcher mechanism, guiding and feeding means is providedy carriedby an arm of said head and comprises an eye 97 in a reduced end of ascrew 99 threaded into a bearing block 101 to be referred to. The Wireis led from said eye between feed rolls 103 and 105, the former beingsplined to a shaft 107 journaled in bearings in said arm, said shaftbeing driven step-by-step as more fully hereinafter described. To imparta positive rotation to the feed rolls 103 and 105, they are providedwith intermeshing gears 109 and 111.

To press the feed roll 105 toward the feed roll 103 and grip the Wirebetween them, the roll 105 is loosely mounted on an eccentric shaft 113(Fig. 13) having fast thereon an arm 115 urged in a direction to presssaid roller 105 toward said roller 103 by a coil spring 117 having oneend connected to said arm and its opposite end connected to the head 79.

To drive the shaft 107 for the wire feed roller 103 it is extendedthrough bearings in the side frames of the machine and projects beyond`one of them and there receives 4 a ratchet 119 (Figs. 1 and 3). Torotate this ratchet st epy--step distances corresponding to the stocklengths sufficient to form the staples, the ratchet is provided with aspring pressed actuatin pawl 121 pivoted to the outer free end off arockin arm 123 fulerumed loosely on the shaft 10 and connected by a rod125 to an eccentric pawl 121 to engage its ratchet 119 and impart astep-by-step feed thereto, but when the camhandle. is rocked toward theleft of Fig. 3, the pawl roller will ride along and' up on said cam andbe moved out from said ratchet and said pawlwill be ineffective totransmit the step feed thereto. This will arrest the feed of the staplestock until the cam is turned to permit the pawl again to engage itsratchet. 4

The staple wire fed step-by-step by the rolls '109, 111 as described isled thence through a tube 137 (Figs. 6 and 11) to a horizontal cuttingtube 139 having a chamfer end (Fig. 15) ata suitable angle to form thestaple points. The wire is fed through this cutting tube overa loop-bar141 carried by a holder 143 pivoted intermediate its ends in a recess inthe heads 79, said holder being adapted to rock on its pivot tointroduce said loop-bar into and Vout of a position beneath said wire asmore fully hereinafter described.

To form a staple from the stock thus projecting beyond the cutting tubeover the holder, there 1s` provided a former 145 (Fi s. 9, 10 and 15)having a corner vertica y chamfered to correspond to the chamfer of thecutting tube end and having a cutting edge 147 for shearing off thestock projecting from the cutting tube. To receive the severed stock thelower'end of the former is provided with a horizontal groove 149 of l adepth corresponding to the diameter of the stock, so that when theformer is 1 brought down toward the loop-bar, as more fully hereinafterdescribed, the severed stock will be temporarily held insaid groove byysaid loop-bar.

-To avoid driving both legs of a staple in the same grain of thewood andto cause the staple to Vclosely straddle the bindingv wire,

the stitcher heads are mounted obliquely to the direction of the lay ofthe binding wire (Fig. 11).

To bend the stock around the loop-bar,"-

the former is provided with an elongated lateral recess 151 (Fig. 9)havin therein opposedy longitudinal grooves 153l Fig. 10)

yeachof a depth (corresponding to the diameter of the staple stock andcommunicating -with the horizontal stock receiving groove 149. As a,resu1t,`on' downward movement of the former the stock in the lhorizontalformer recess, thereby completing the staple.

To positively force the former downward to bend the staple stock overthe loop-bar as described, there is provided a spring pressed dog 155(Fig. 7 having its upper end pivoted to a block 157 bolted to an ear 159projecting from the up r head 81. The lower end of said dog is irectlyabove an upwardly projecting end of the former 145. As a result, whenthe upper head is moved downward (Fig. 8) the former 145 will also bemoved downward and .will bend the staple stock over the loop-bar to forma staple as described.

- The former is not moved positivel en tir-ely to the face of the box`section as s own in Fig. 8, but after the staple has been formed thefeeding dog 155 is moved out of engagement with the end ofthe former 145by a pin l161 projecting through said dog and adapted to engage beveledor cam ends 163 of ribs 165 on said lower head. To move the formeryieldingly. on down to the box blank and present the staple thereto theformer 145 is connected to an L shaped rod 167, the upper end of whichprojects through an aperture in the upper head ear 159. A coil spring169 isinterposed between the lower face of said ear and a collar 171fast on said rod 167.

To rock the loop-bar out from the position shown in Fig. 7 to theposition shown in Fig.' 8, there is provided a trip slide 173 secured toa back bar 177 pivotally connected to the dog block 157, said slidebeing adapted to engage an incline face 175 of the loop-bar holder 143referred to, and thereby automatically rock said loop-bar out frombeneath the staple loop and permit the staple to be carried down andpresent its points to the box section.

To contributeto the positioning of the binding wire during the staplingoperation the former is provided with a groove 145Il Y The staple, beingthus positioned on a box section, is then in readiness to be driventherethrough. To this end there is provided a driver 179 (Figs. 7 and 9)projecting into the lateral recess 151. of the former, said driver beingsuitably secured to the back bar 177.

lOn downward movement of ythe upper head of the stitcher the former 145will move down and bend the staple stock over the .loop-bar 141. Thenthe latter will be rocked out from the staple loop and the dog pins 161will engage the incline 'of the ribs 165 and rock the dog out fromengagement with the former. Further downward movement of the headthrough the spring 169 will present the former and the staple therein tothe box blank beneath the former. Continued downward movement of thehead will cause the driver 17 9 to engage and drive the staple into thestock, the points of the staple being bent over or clenched by enagement with a' usual anvil beneath the b ank.

This marks the completion of the cycle of stitching operations forstapling the bmdingwire to the box section.-

he head 81 is then lifted, the former being held by the spring 169 onthe box blank until after the dog 155 is rocked by its spring back toits original position (Fig. 7) in readiness again to engage the top ofthe former. Then the driver 179 engages the u per end of the formerrecess 151, and li the former up above the loop bar and the slide 173engages the loop bar holder 143 and rocks the bar beneath the former inreadiness to form another staple.

The box blank carriage is then fed a step, a length of staple stock isfed into the stitcher and another staple is formed and driven as before.This series of operations is continued until the binding wire has beensecured to all of the sections essential for forming the complete boxblank.

In operation, the carriage sprocket wheels are adjusted to conform tothe length of the side of a box desired and a suitable number ofstitchers are placed on the cross-head bars in position to properlylocate the binding wires. The latter are then led from their reelsthrough their guides and applied to the box blank sections and thecarriage is fed by themanually controlled feed handle 37 to bring thefirst box blank section in proper position relative to the stitchers.The carriage feed is then thrown in and the carriage is automaticallyfed step-by-step. During the interval between steps the stitcher formsand applies staples to the sections to secure the binding wire theretoas described. As spacer blocks approach the stitcher mechanism the willfeel for the dettor pawls which wilautomatically engage said spacerblocks and either prolong the feed step at a normal rate of speed, oraccelerate the speed 4 during a feed step of normal duration, therebycarrying the space between adjacent sides beneath and beyond thestitcher mechanism a suicient distance to prevent any application ofstaples at the joints between said sides. The accelerated Ior prolongedfeed will depend upon the arrangement of the driving connections of thedetector.

If in the course of the automatic step-b step and skip feeds it isdesired to modify either, the manually operable feed mechanism isavailable for this purpose-and conveniently acceible to the operative ashe stands by the side of the machine controlling the operations thereof.

.In some instances a single side of the box may be composed of a numberof sections of different or irregular Iwidths and it may be desired. toavoid applying a staple to the joints between such sections. This may bedone by controlling the feed by the manually operab e handle.

In some instances itmay be desired to variously space the staples oreliminate a staple at one place, as at a joint between sides or otherplaces. This may be done by' the manual control of the carriage feed orby tripping the actuating pawl 121 of the staple stoc feed ratchet 119.

By my invention is provided a machine which is simple and effective inconstruction and operation and adaptable to meet a wide range of varyinconditions.

It will be un erstood that it is not indispensable that all of thefeatures of the invention be used conjointly since some of them may beused separately to advantage.

Having described one illustrative embodiment of the invention withoutlimitin the same thereto, what I claim as new an de sire to secure byLetters Patent is:

1. In a mac ine ofthe class described, the combination of a carriage forfeeding box sections; means to advance said carriage stepby-step; meansto introduce bindning material to said sections; means to staple saidmaterial to said sections at intervals; and automatic means including adevice coperating with said carriage for giving the latter a skip feedto prevent stapling at joints between sections.

2. The combination of a step-by-step fed carriage for feeding boxsections; means for introducing binding material to the latter; meansfor securing said material to said sections; and automatic means,including controlling means on said carriage for prolonging a feed stepof said carriage, to avoid applying said securing means between saidsections. j

3. -The combination 'of a step-by-step fed carriage for receiving boxsections; means to introduce binding wire thereto; means to secure thebinding wire to said sections; and carriage responsive means foraccelerating the feed to prevent application of securing means betweensections.

4.-. In al machine of the class described, the combination of a carriagefor receiving box sections; means to feed said carriage step-by-step;means to introduce wire to,

said sections; means progressively to secure as it approaches a staplingmechanism to 'avoid stapling at a joint between adjacent box sections. y

6. In a machine of the class described, the combination of a'carriage,means to feed the same step-by-step; spacer means y on said .carriagefor determining the asprogressively engaging said spacers to vary thefeedof said carriage. l

8./InV a machine of the class described, the combination of a carriage;means to feed the same step-byfstep; continuously actuated means' forgiving said carriage a skip feed; and means on the latter for renderingsaid continuously actuated means in termittently eifective.

l 9. In a machine of the class described, the combination of a carriage;-means to feed the same step-by-step; and auxiliary feed means to avoidstapling at a joint be.

tween adjacent box sections comprising reciprocatory means havingprovision for rendering the same effective to engage and y tion.

feed said carriage on movement in one' direction and ineffective onmovement in an opposite direction. v

10. In a machine of the class described, the combination of avstepby-step fed carriage for receiving box sections; means to feed thesame step-by-step; and additional feed means to avoid stapling at ajoint between adjacent box sections comprlsing a slide; means toreciprocate the latter, and means on said slide eiective for feedingsaid carriage on movement of said slide in one direction and ineffectivefor feeding said carriage on movement of said slide in an oppositedirec- 11. In a machine of the class described, the combination cfacarriage; means to feed the same step-by-step; a carrier; a springpressed pawl on said carrier; an leccentric for reciprocating saidcarrier; and means on said'carriage adapted to be engaged by said pawlto impart a skip movement-to said carriage.

12.1In a machine of the class described, the combination .of a frame;sprocket wheels; former chains thereon; means` to feed said wheelsstep-by-step; guide means on said frame; a carrier in said guide means;a pawl on saidcarrier; a rockarm; a link connecting the latterI to saidcarrier; an eccentric for rocking said arm; and means on said carriagefor rendering said carrier pawl effective to impart feed movement tosaid carriage.

13. In a machine ofthe class described, y

the combination of a carriage; means to feed the same step-by-step; andmeans to impart movement to said carriage including a spring pressedpawl; means to limit the movement of said pawl; and means on saidcarriageadapted to be engaged by said fpaWl.

tions on said carriage, and means for feeding the same step-by-stepincluding a slotted rocking arm; a pawl pivoted-thereon, an eccentric,means connecting said eccentric to said arm adjustably secured in saidslot, and means manually operable during the operation of thejmachinefor varying the distance of said -connecting means from-the fulcrum ofsaid arm. y,

15. In amachine of the class described, the combination of a carriagehaving rovision for receiving and holding box b ank sections, and meansfor feeding carriage step-by-step including a ratchet; a slotted rockingarm; a pawl pivoted on saidarm; means fOr rocking said arm having anadjustable connection with the slot, and means for alternativelymovingsaid connection to positions for normal step and skip `feeds.

16. In a machine of the class described, the combination of..a carriagehaving provision for receiving and spacing box blank sections; automaticmeans for feeding the carriage step-by-step, and manually controlledmeans operating through said automatic means for varying the length of aste Il. In a machine lof the class described,

the combination of a carriage having rovision for receiving and spacingbox b ank sections; and means for feeding the carriage step-by-stepincludin a pawl and ratchet; an ann carrying sai pawl; and means forvarying the effective length of said arm during the runnin of themachine. v 18. In a mac ine of the class described, the combination of acarriage having rovision for receiving and spacing box b ank Y sections;and means for feeding the carriage ste -by-step including a pawl andratchet;

a s otted arm carrying said pawl; a pin in said slot; means co eratingwith said pin to rock said arm an impart a step feed to 129 said pawl,andv means for adjusting said pin in said slot durin the operation ofthe machine to vary the ength of the feed step'.

19. In ajmachine ofthe class described, the combination of a carriagehaving-provision for receiving and spacing box blank sections; and meansfor feeding the carriage .step-by-step including a pawl and ratchet,

riage for receiving box sections; means to apply binding means thereto;means to staple said binding means to said sections; pawl and ratchetmeans to feed staple stock, and means including a manually controlledcam cope-rating with said pawl and adapted-to be set in a position tointerrupt the staple stock feed.

21. In a machine of the class described, the combination of a carriage;means to feed the same step-by-step; means to apply binding wire tosections carried by said carriage; means to staple said wire to saidsections; pawl and ratchet means to feed staple stock, and -manualloperable means for controlling said feed including a manually operablecam adapted to be set in a predetermined position for throwing saidratchet out of Aeffective position.

22. In a machine of the class described, the combination of a carria e;means to feed the same step-bystep; an means to avoid stapling at ajoint between adjacent box sections comprising means movable relativelyto said feed means and having provision for rendering the same effectiveto feed said carriage independently of said feedin means.

23. n a machine of the class described, the combination of acarriage;means to feed the same step-by-step; means to staple binding wire to thebox sections carried on the carriage; and means to avoid stapling at ajoint between sections comprising means operable independently of saidfeeding means.

24. In a box machine, the combination of a carriage having provision forreceiving and spacing box blank sections; and means for feeding saidcarriage step-by-step including a ratchet and a reciprocating pawlcooperating therewith; and means manually operable during the running ofthe machine for varying the length of reciprocation of said pawl.

25. A box machine comprising in combination a carriage having provisionfor re* ceiving and spacing box lank sections; and means for feedingsaid carriage stepeby-step having provision for varying the length ofthe step feed during the running of the machine.

In testimony Whereof, I have signed my name to this specification, inthe presence of twosubscribing witnesses.

OSCEOLA C. THOMPSON.

Witnesses:

GERALDINE R. CALLENDER, CLARENCE LORILLARD.

